Bumper construction for vehicle tanks



Oct. 13, 1936. A. DAvl's, JR

BUMPER CONSTRUCTION FOR VEHICLE TANKS 3 Sheets-Sheet 1 Filed NOV. 23,1934 ATTOR EY Oct. 13, 1936. A. DAVIS, .JR 2,057,0415

BUMPER CONSTRUCTION FOR VEHICLE TANKS Filed Nov. 25, 1934 3 Sheets-Sheet3 '1 o o '1c y 'L5 f V7 O O \O l Patented Oct. 13, 1936 l AUN,mE-D'STATES P'IENT=QFFICE vAugustine Davis, Jr., Cincinnati, OhioApplication November 23, 1934, Serial No. 754,426

1 Claim. (Cl,

This invention relates to vehicle tanks or tank vehicles, such as trucktanks or'trailer tanks, and more especially to matters involving thebumperliprotection at .the rear end of the tank or 5 tank unit. 'Iheinvention is particularly applicable to streamline tank bodyconstructions or to any construction in which it is necessary to disposethe bumper close to the bucket box or other rear end housing.

The object of the invention is to provide a construction which is simpleand strong and convenient to operate, and with which the bumper can bemoved out of the way notwithstanding its proximity to such housing.

In the accompanying drawings forming part hereof Fig. 1 is a sideelevation of a rear portion of a tank vehicle in which the invention isembodied;

, Fig. 2 is a partial plan view;

20 Fig. 3 is a fragmentary, vertical, longitudinal section through therear-end housing, showing the parts inside; I

Fig. 4 is a fragmentary rear elevation;

Fig. 5 is a fragmentary view looking at the inside of the adjoiningportions of the movable bumper section and one of the stationary bumpersections, the movable bumper section being shown -slightly raised;

Fig. 6 is a plan View of the construction shown 30 in Fig- 5;

Fig. '7 is a view similar to Fig. 3, but showing a modification in whichthe movable bumper construction swings downward; and Y Fig. 8 is a viewsimilar to Fig. 5, but illustrating a reversal of locking parts whichpermits the bumper to swing down.

The truck tank 2 partially illustrated in the drawings is one havingshields 3 which streamline the top of the tank, or the top and sides ofthe tank above the side running boards 4, beneath which there arecompartment structures 5. Extending rearward from the rear end of thetank there is a box or housing 6 having a sloping back in which there isa door opening I closed by a door or doors 8. This housing is ofsheet-metalwork and is united or continuous with the walls of the tankbody, in addition to which it may be braced from the sills 9 of the bodymounting and/or the chassis sills 20 by bracing indicated at I0.

In the tank body shown in the drawings, the housing encloses piping II,through which liquid is delivered from the tank compartments. The pipesfrom the individual compartments terminate in faucets I2, only one ofwhich is shown, having hooks I3 on which buckets can be hung to .receivethe discharge. The piping .may be manifold inv accordance with knownpractice, in

order to deliver liquid from anyone or more of the compartmentsthroughaI common outlet or through a hose, and the numeral I 4 indicatesthe position of a handle of a valve used in connection with a manifold.The bottom of the housing 6 may be left open, or it may be provided witha bottom hinged to drop downward and forward.

A bumper I5 extends across close behind the rear lower extremity of thehousing 6. This bumper is movable, and in addition there are preferablyside bumpers or bumperettes I6, which are stationary. The bumpers I5 andI6 may be termed bumper sections. The curved stationary sections I6 areunited to the fixed Walls of the housing 6, and may be directly bracedby the bracing I0. 'I'heir rear ends terminate near the door opening 1.When the movable section lI5 is in its ordinary position, protecting therear end of the tank unit, its ends are contiguous and in line with theends of the sections I6, so that the sections I5 and I6 then constitutein effect a bumper extending across the back and curving forwardlyaround the sides of the housing.

The movable bumper I5 is secured to the rear ends of arms I1 whichextend forward inside the housing 6 and are pivoted on a hinge rod I8,the ends of which are carried by the bracing IIJ, which in turn isfastened to the tank mounting sills 9 or the chassis sills 20, or toboth. To the hinged arms I'I, there is also secured a transverse member2 I, which forms the lower sill of the door opening 1. The parts I5 and2I are united together by pieces 22. Thus, both of the parts I5 and 2lare movablel and preferably they are movable as a unit.

In the construction shown in Figs. l to 6, the bumper I5 and the member2Ican be swung upward and forward through the door opening into theinterior of the housing 6, and the hinged arms Il are of such length andthey and the hinge axle I8 are so arranged that when the bumperconstruction is thus moved out of the way, and when it is in the raisedposition shown in broken lines in Fig. 3, it clears any piping, such asthe faucets I2 and the valve I4. A catch or catches 24 may be providedto hold the bumper construction in such raised position.

In order to support the movable bumper device in its lowered orprotecting position, blocks 25 and 26 are affixed to the inner or frontside of the movable bumpery section I5, adjacent each end thereof, theupper block 25 projecting beyond CFL loVv

of the stationary bumper sections I6, adjacent their rear ends.Y 'I'heblocks 21 and 28 have'vertical holes 29 and 30 and the blocksrt25 and 26have downwardly projecting pins 3| and 32 which Yenter the saidrholes.In this manner the movable bumper will be positioned and retained innormal position so that, in addition to the support Ypro- Y supportingarms 19,*the movable bumper Yreceives Y support from the pin and holeinte'rengagement` between the blocks 25, 26 and the blocks 21, 28,v Vtoenable the bumper to withstand any shock duey Since the blocks 25Y and26 rest on- Vto collision.

vided by the arms l1, the hinge rod I8: and the the blocks 21 and 28,and since the Ydoors kr8 when closed t close Vto the sill 2| and thuskeep theV movable bumper construction from rattling',r itV is notabsolutely necessary to provide any other Y i means for securing themovable bumper against kupward movement. Y Nevertheless, a slidableretaining Vpin 33 may be provided at each joint to f engage and holdvone of the pins 3l, 32.

In Ythe construction shown in Figs. '1 and 8, the

Y from dropping.

movable bumper and door sill canY swing downblocks 25, 26, with theirpins 73|, 32,?and the blocks 21, 28, with their holes 29, 30, isreversed. f In this construction, catches, for example such asthe pins33, are

required to keepthe bumper Y I claim: n Y

In a tank vehicle having a rear-end housing provided with a door,` abodily movable sill for `V-said door, a bodily `movable bumperv section,

lswinging arms carrying said sill and said mov-V able bumper section,fixed side bumper sections, and blocks "secured to the contiguousportions of the fixed and movable bumper sections and havinginterfitting formations".

AUGUsmE yDAVIS, 1 Jn.

V2,057,015 i Y 'i i the end of thisrmovable bumper. Other blocks 21 and28 are secured Vto the inner or front'side

